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S8055MTP
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Product Detailed Parameters
- Description：SCR 800V 55A TO218
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tube
- Voltage - Off State：800 V
- Voltage - Gate Trigger (Vgt) (Max)：1.5 V
- Current - Gate Trigger (Igt) (Max)：40 mA
- Current - Hold (Ih) (Max)：60 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：550A, 650A
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Package / Case：TO-218-3, TO-218AC
- Supplier Device Package：TO-218 Non-Isolated Tab
- Voltage - On State (Vtm) (Max)：1.8 V
- Current - On State (It (AV)) (Max)：35 A
- Current - On State (It (RMS)) (Max)：55 A
- Current - Off State (Max)：20 µA
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Overview
The Littelfuse S8055MTP is a Silicon Controlled Rectifier (SCR) from the Teccor Sxx55x series, designed for high-power switching applications. It features a rated repetitive off-state voltage (VDRM) of 400 V and an RMS on-state current (It RMS) of 55 A. The device exhibits a maximum forward voltage drop (Vf) of 1.8 V at full load. Gate triggering requirements are specified with a maximum gate trigger voltage (Vgt) of 1.5 V and a maximum gate trigger current (Igt) of 40 mA. The component supports a non-repetitive peak on-state current (IBO/Itsm) of 650 A. It operates within a junction temperature range of -40 °C to +125 °C and is housed in a through-hole SMTO-218 package.
Feature Summary
- High surge capability with a 650 A non-repetitive peak on-state current rating for robust fault handling.
- Low conduction loss characterized by a 1.8 V maximum forward voltage drop at rated current.
- Standardized gate drive interface requiring a maximum of 1.5 V and 40 mA for reliable triggering.
Applications
- Industrial motor control systems requiring high current switching.
- AC power regulation circuits and solid-state relays.
- Welding equipment power stages.
Procurement Notes
Verify the specific suffix MTP against the manufacturer's latest datasheet to confirm the exact pinout and thermal characteristics for the SMTO-218 package. Ensure that the 400 V voltage rating aligns with the circuit's peak inverse voltage requirements. Cross-reference the 55 A RMS current limit with the expected thermal management solution to maintain operation within the specified -40 °C to +125 °C temperature range.
Selection Notes
Select this component when a 400 V blocking voltage and 55 A continuous current capacity are required in a through-hole configuration. Compare the 1.8 V forward voltage against alternative packages like the NRP surface-mount version if PCB space is constrained. Consider the 650 A surge rating for applications involving high inrush currents or short-circuit protection scenarios.
Part Context
The S8055MTP belongs to the Littelfuse Teccor Sxx55x family of SCRs, which standardizes gate parameters across various voltage ratings. This series includes variants such as the S4055MTP (400 V), S6055MTP (600 V), and S8055MTP (800 V). All members share identical 55 A current ratings and gate drive specifications, simplifying design updates where only voltage isolation needs adjustment.
Replacement Considerations
Publicly confirmed substitute part numbers for the S8055MTP were not found in the provided documentation. Designers should verify compatibility with other Sxx55x series devices or consult manufacturer cross-reference guides for equivalent TO-218 packaged SCRs.
